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Implementations testthrix.c for Unix and testthrw3.c for Windows. Multi-threaded test cases use the new interface. Rename lockutw3 to lockut (no longer Windows-specific). Run multi-threaded test cases on Windows and lockut elsewhere. Copied from Perforce Change: 185350 ServerID: perforce.ravenbrook.com
133 lines
3.5 KiB
C
133 lines
3.5 KiB
C
/* lockut.c: LOCK UTILIZATION TEST
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*
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* $Id$
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* Copyright (c) 2001-2014 Ravenbrook Limited. See end of file for license.
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*/
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#include "mpm.h"
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#include "testlib.h"
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#include "testthr.h"
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#include <stdio.h> /* printf */
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#include <stdlib.h> /* malloc */
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#define nTHREADS 4
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static Lock lock;
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unsigned long shared, tmp;
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static void incR(unsigned long i)
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{
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LockClaimRecursive(lock);
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if (i < 100) {
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while(i--) {
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tmp = shared;
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shared = tmp + 1;
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}
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} else {
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incR(i >> 1);
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incR( (i+1) >> 1);
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}
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LockReleaseRecursive(lock);
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}
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static void inc(unsigned long i)
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{
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incR( (i+1) >>1);
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i >>= 1;
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while (i) {
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LockClaim(lock);
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if (i > 10000) {
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incR(5000);
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i -= 5000;
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}
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tmp = shared;
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shared = tmp+1;
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i--;
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LockReleaseMPM(lock);
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}
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}
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#define COUNT 100000l
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static void *thread0(void *p)
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{
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testlib_unused(p);
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inc(COUNT);
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return NULL;
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}
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int main(int argc, char *argv[])
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{
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testthr_t t[10];
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unsigned i;
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testlib_init(argc, argv);
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lock = malloc(LockSize());
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Insist(lock != NULL);
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LockInit(lock);
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UNUSED(argc);
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shared = 0;
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for(i = 0; i < nTHREADS; i++)
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testthr_create(&t[i], thread0, NULL);
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for(i = 0; i < nTHREADS; i++)
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testthr_join(&t[i], NULL);
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Insist(shared == nTHREADS*COUNT);
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LockFinish(lock);
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printf("%s: Conclusion: Failed to find any defects.\n", argv[0]);
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return 0;
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}
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/* C. COPYRIGHT AND LICENSE
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*
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* Copyright (c) 2001-2014 Ravenbrook Limited <http://www.ravenbrook.com/>.
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* All rights reserved. This is an open source license. Contact
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* Ravenbrook for commercial licensing options.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Redistributions in any form must be accompanied by information on how
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* to obtain complete source code for this software and any accompanying
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* software that uses this software. The source code must either be
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* included in the distribution or be available for no more than the cost
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* of distribution plus a nominal fee, and must be freely redistributable
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* under reasonable conditions. For an executable file, complete source
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* code means the source code for all modules it contains. It does not
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* include source code for modules or files that typically accompany the
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* major components of the operating system on which the executable file
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* runs.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
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* IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* PURPOSE, OR NON-INFRINGEMENT, ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT HOLDERS AND CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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